aiidalab uninstall does not remove the AiiDALab app package installed by pip

[unkcpz]

In the test, the aiidalab-widgets-base is installed by aiidalab install and uninstall with aiidalab uninstall. It will cause the problem that the app is deleted but the package still in the python path. Which potentially lead to the fail of pip check, when the aiidalab-widgets-base has newer version i.e 2.2.0 but not yet bump in aiidalab-qe i.e 2.1.0.
It will result the: "aiidalab-qe 23.10.x has requirement aiidalab-widgets-base==2.1.0, but you have aiidalab-widgets-base 2.2.0."

It caused from aiidalab uninstall only move the app to trash but not run pip uninstall, so the fixture generate_aiidalab_install_output is not roll back the environment.

The ultimate solution is install the awb from pip install since it will no more be the app (aiidalab/aiidalab-widgets-base#550).

[danielhollas]

Hmm, interesting issue. I think this should actually be fixed in the aiidalab package so that aiidalab uninstall also removes the built package (e.g. aiidalab-qe. (the other dependencies of the app will still be there, but I am not sure we have a good solution for that).

@unkcpz if you agree let's move the issue there.